The Skull Flashcards
What Suture joins the two parietal bones together?
Sagittal Suture
What bones does the Lamboid Suture join?
Joins the parietal bones to the occipital bone.
What does the Coronal Suture join?
Joins the parietal bone to the frontal bone.
What suture joins the temporal bone to the parietal bones?
The squamous suture
What is a protuberance?
A bony outgrowth
What is a condyle?
A rounded protuberance at the end of a bone, forming an articulation with another bone.
What is a fossa?
A hollow/depressed area in the bone
What is the optic foramen?
Found on the sphenoid bone, it is the opening of the optic canal. Optic nerve and opthalmic artery pass through/
What is the Superior Orbital Fissure?
Found between the lesser and greater wings of the sphenoid. Oculomotor, trochlear, abducens and opthalmic nerve pass through.
What is the inferior orbital fissure?
Found on the floor of the orbit, formed by the sphenoid and maxilla
What is the foramen ovale?
Found on the posterior part of the sphenoid, the largest of the 3 main foramina. The mandibular and glossopharyngeal nerve pass through.
What is the foramen Rotundum?
Circular hole in the sphenoid, connecting the middle cranial fossa and the pterygoidpalatine fossa. Maxillary nerve passes through,
What is the foramen spinosum?
Lateral to the foramen ovale, middle meningeal artery passes through.
What is the Jugular Foramen?
Large foramen in the base of the skull between the temporal and occipital bone.
What is the hypoglossal canal?
Found in the occipital bone (sort of inside the foramen magnum)
What is the foramen magnum?
Large opening in the base of the skull in the occipital bone. Spinal cord passes through as it leaves the cranial cavity.
What is the glenoid fossa/mandibular fossa?
Depression in the temporal bone which articulates with the condyle process of the mandible to form the TMJ.
What is the Glenoid Eminence/articular eminence?
Located anterior to the glenoid fossa on the zygomatic arch and controls how far the jaw opens.
What is the external acoustic meatus?
The ear canal, pathway running from the outer to middle ear.
What is the carotid canal?
Found in the temporal bone, found laterally and posteriorly from the foramen ovale (looking from the base of the skull)
